The 101-carat stone is the 14th diamond over 100 carats the miner has found this year, a record for the company. Last year, Gem Diamonds unearthed eight stones of that size.

The largest diamond the miner has found is the 910-carat Lesotho Legend, which it claims is the fifth-largest in history. It discovered the stone in January, and sold it in March for $40 million, or $43,912 per carat.